US3036647A - Jet cable tool drill - Google Patents

Description

May 29, 1962 o. L. MCCRACKEN JET CABLE TOOL DRILL Filed July 50, 1959 INVENTOR.

ATTURNEYE United States Patent 3,036,647 JET CABLE TOOL DRILL Ogden Lytle McCracken, 305 S. Carol St., Monahans, Tex. Filed July 30, 1959, Ser. No. 830,649 1 Claim. (Cl. 175418) This invention relates to drilling apparatus.

The object of the invention is to provide a drill which is constructed so that the operating or moving parts will be kept clean and properly functioning or operating.

Another object of the invention is to provide a jet cable tool drill wherein cuttings and mud will be washed up out of the way so as to permit the bit to drill faster and wherein the present invention is constructed so that there will be a minimum amount of fishing jobs required.

A further object of the invention is to provide a jet cable tool drill which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing, forming a part of this application, and in which like numerals are used to designate like parts throughout the same:

FIGURE 1 is an elevational view of the jet cable tool drill, showing certain of the parts disconnected.

FIGURE 2 is a fragmentary sectional view illustrating certain constructional details of the present invention.

FIGURE 3 is a sectional view taken on line 3-3 of FIGURE 2.

FIGURE 4 is a fragmentary sectional View illustrating the construction of the swab cup.

Referring in detail to the drawing, the numeral indicates the jet cable tool drill of the present invention which is shown to comprise a socket member 12 that is connected to the lower end of the cable 11. The numeral 13 indicates a stem which has its upper end 14 connected to the socket member 12. A bar 15 has its upper end 16 threadedly connected to the lower end of the stem 13, and a rod 17 depends from the lower end of the bar 15. The numeral 18 indicates a bracket which is arranged contiguous to the bar 15.

There is further provided a tube 19 which has its upper end 23 threadedly connected to the lower end of the bracket 18, and the tube 19 is provided with slots or openings 21 and wrench receiving recesses 22, and the tube 19 is further provided with a longitudinally extending bore or passageway 20, FIGURE 2.

There is shown in FIGURE '1 for example, a support member 24- which is adapted to be connected to the lower end of the tube 19, and the support member 24 carries the churn drill bit 25.

As shown in FIGURE 4 a swab cup 26 is mounted on the lower reduced diameter end portion 27 of the rod 17, and a skirt 28 is arranged adjacent the upper end of the diameter section 27. A portion of the reduced section 27 is threaded as at 29, and the numeral 30 indicates a casing which is arranged within the cup 26, and a securing element 31 is arranged in threaded engagement with the portion 29 so as to maintain the parts immobile in their adjusted or assembled positions.

From the foregoing, it is apparent that there has been provided a jet cable tool drill, and in use the tool 10 of the present invention is adapted to be mounted on a cable such as the cable 1 1.

The cable 1 1 is adapted to be connected to a member such as a walking beam, and the stem 13 is connected to the socket member 12 on the lower end of the stem 11.

As the cable 11 is moved up and down, and with the parts connected together, it will be seen that the rod 17 will be reciprocated up and down and this will cause the swab cup 25 to move up and down in the bore 20. Thus,

3,036,647 Patented May 29, 1962 the swab cup 26 can cause fluid to pass in or out through the openings 21 so as to circulate the fluid through the various parts such as through the bore 32 which leads to the churn drill bit 25. Furthermore, as the cable 11 is lifted up and down, the drill bit 25 will be able to drill the hole and since the fluid will be pumped or forced around the drill bit 25, cuttings and the like will be kept away from the drill bit so that the drill bit can operate in a more efiicient or clean fashion.

The parts can be made of any suitable material and in different shapes or sizes.

On the up stroke the swab cup 26 moves down away from the skirt or swab thimble 28 to allow water to go down through the inside of the swab cup 26 and out through the slots or openings 21 in the barrel or tube -19. On the down stroke the swab cup 26 moves back up against the swab thimble 28 to make a seal which causes it to push fluid on the down stroke.

The string of tools can be larger or smaller depending upon the size of the hole which is being drilled.

In use, the stroke of the walking beam on the drill rig may be set at a 42 inch stroke so as to lift and drop the tool 42 inches at each stroke of the beam. The lost motion between the jar bumpers, bracket 18 and bar 15, looses about a half of this or 21 inches so that the travel of the bit 25 and swab cup 26 is the remaining 21 inches. Thus when the bit 25 is stopped at the bottom of the hole being drilled, the cable '11 allows the bar '15 and the rod 17 connected thereto to move downward causing the swab cup 26 to move downward in the bore 20 thus cforcing water outwardly of the bore 20 through the bore 32. The water thus forced outwardly of the bore 32 washes the drill cuttings away from the bottom of the drill hole and from around the bit 25 providing a more efiicient cutting of the bit 25. On the next upward stroke of the walking beam when the cable will pick the barrel or tube 19 on the bottom of the drill hole up 21 inches, the member 13 will move upward drawing the member 15 upward so as to move the rod 17 which has the swab cup 26 thereon upward, the swab cup 26 causes the water to jet through the openings 21 in the tube 19 out through and on to the bit 25. This keeps the cuttings and mud washed up out of the way so as to permit the bit to drill faster and the jet of water at each stroke also helps keep the hole clear of cuttings :and mud and thus make the operation of the drill bit more eflicient since it is not necessary to operate the walking beam at a fast motion and it will also cut down on fishing jobs for tools that have been lost because of broken cables.

The member 30 is a inch pipe barrel which is welded as at 40 to the member 31 and has slots 41 cut in the sides which permit the water to bypass through on the upstroke. The wrench receiving recesses 22 are squares which permit large wrenches to fit thereon as for example when tool joints are being made up, or assembled.

The water passes through the opening or bore 32 on each downward stroke.

Minor changes in shape, size and rearrangement of details coming within the field of invention claimed may be resorted to in actual practice if desired.

I claim:

In a device of the character described, a cable, a socket member connected to the cable, a stem connected to said socket member, a bar depending from the stem, a bracket connected to said bar, so that said bracket may move in longitudinal relation to said bar, a rod depending from said bar and projecting through the lower end of said bracket, a tube connected to the lower end of said bracket, and the tube for its entire length being provided with a longitudinally extending bore, there being a plurality of slots in said tube adjacent its connection with said bracket communicating with said bore and with adapted to be reciprocated within a drill hole so that the exterior of said tube, a support member connected upon downward movement of said rod said swab cup will to the lower end of said tube, said support member being force water through the bore in said support member provided with a longitudinally extending bore for its and upon upward movement of said swab cup water will entire length, said bore being in communication with the 5 be forced outwardly of the openings in said tube. bore in said tube, a swab cup on the lower end of said References Cited in the file of this patent rod, said rod having its lower end of reduced diameter, a skirt above said reduced-diameter section of said rod, UNITED STATES PATENTS a casing within said cup, a securing element on said rod 371,575 Gray Oct. 18, 1887 below said casing, a drill bit connected to said support 10 1,652,744 Sorensen Dec. 13, 1927 member at the outlet of the bore therein and said tube 2,041,720 Melo May 26, 1936

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